Poly(vinyl butyral)
Also known as: PVB, Polyvinyl Butyral, poly(vinyl butyral) macromolecule, Poly[(2-propyl-1,3-dioxane-4,6-diyl)methylene], polyvinylbutyral resin, Butvar, EINECS 272-808-3, MFCD00084458
Poly(vinyl butyral) (CAS 63148-65-2) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C20H25ClN6O3 and a molecular weight of 432.904 g/mol. Key properties include a melting point of 90-120 °C, a boiling point of 660.6±65.0 °C at 760 mmHg, a density of 1.08 and a flash point of 353.3±34.3 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 63148-65-2
- Jingsj CID
- J-8431-6
- Molecular Formula
- C20H25ClN6O3
- Molecular Weight
- 432.904 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 90-120 °C |
|---|---|
| Boiling Point | 660.6±65.0 °C at 760 mmHg |
| Density | 1.08 |
| Flash Point | 353.3±34.3 °C |
| Exact Mass | 432.167664 |
| PSA | 18.46000 |
| LogP | 2.42 |
| Vapor Pressure | 0.0±2.1 mmHg at 25°C |
| Refractive Index | 1.485 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Frequently Asked Questions
What is the CAS number of Poly(vinyl butyral)?
The CAS number of Poly(vinyl butyral) is 63148-65-2.
What are the molecular formula and molecular weight of Poly(vinyl butyral)?
Poly(vinyl butyral) has molecular formula C20H25ClN6O3 and molecular weight 432.904 g/mol.
Is Poly(vinyl butyral) hazardous?
Poly(vinyl butyral) has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Poly(vinyl butyral) (CAS 63148-65-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8431-6 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.